Can you attach the output of xrandr --verbose from Maverick when it's working. I'd like to see the /var/log/Xorg.0.log from that case as well.

Also, on natty please turn on drm debugging. You can do this using the xdiagnose utility, it's the first checkbox in the dialog. Reboot and then reproduce the bug, and then run 'dmesg > dmesg.txt' and attach it to this bug report.

Having the same problem with Dell Inspiron 9400. S-Video worked flawless with Ubuntu 10.10, now its not working at at under natty, although for a brief milisecond there, when pressiing Fn+F8 the desktops background can be seen on the TV, but only for a milisecond or two.

I'm experiencing the same problem with an HP Compaq tc4400, but I'm sure its Intel 945. S-Video worked well in previous versions, now nothing??? Experiencing same brief flash when using the function key.

This bug also affects Acer 4720z with Intel Corporation Mobile GM965/GL960 after upgrade to 11.04. Was working fine in 10.10. Is there a workaround? Perhaps we can regress the driver? Maybe disable Compiz or something? Anything? Anyone? Bueller?

I just tried the latest xorg edgers drivers from their ppa. Same problem with those drivers. It looks like display(what should be displayed) isn't being sent to the TV1 output or perhaps it is being sent and the TV1 is set to the wrong signal output.

just did an install with an asus v7100pro and i had to use the no acpi option just to be able to install it and now all i get is a big pink screen. As my tv is my only monitor at the moment so i have to use svideo and this card is nvidia i cannot upgrade. Also natty live cd will not work on main pc which uses nvidia 8400 gs 512 with s-video.

Tried Xorg intel driver from maverick but no luck. Then tried maverick's kernel with both intel drivers and they work, so I think the bug is in the kernel's intel vga part, not xserver-xorg-video-intel.

However, if I press Fn-F8, tvout turns off permanently and I can't re-enable it until a reboot.

I tried with Kernel v3.0-rc2, and I still have the same problem, S-video doesn't work, and also, my headphones don't make any sound, (my speakers works fine). I'm using kubuntu 11.04 and intel GM965/GL960

I got a kernel update this morning. It has *partially* fixed the problem. If I plug my machine into the TV via S-Video an image now appears. However, every 2 minutes (approx) the TV screen (but not the laptop monitor) flashes blue (it displays blue if there is no signal or the laptop is not plugged in).

The updates were for "Linux kernel headers for version 2.6.38 on x86/x86_64". Packages linux-headers-2.6.38-10-generic and friends were added.

as mentioned in comment #41 the kernel upgrade partially fixed the problem. As for my computer (specs described in a duplicate Bug #782887) all seems to be fine except that the tv-screen (not the laptop screen) flickers every 10 seconds exactly. I tried running xrandr without any arguments and it seems that the flicker I get every 10 seconds is the same as the one I get when running xrandr. Must be related to some system-run xrandr probe?

There was another kernel update (2.6.38-11-generic), but the flicker problem did not go away. Well, Oneiric is coming soon... Although it sucks you have to stick to workarounds for 6 months, at least we do have a few workarounds in case of this bug.

You can also upgrade to a kernel from oneiric. You will have to find
it in packages.ubuntu.com, download it, install it and then download
and install the missing dependencies also from oneiric. I have tried
it, it works, but I found it simpler to use the older kernel just when
I want to watch movies through my tv screen.

You can also upgrade to a kernel from oneiric. You will have to find it in packages.ubuntu.com, download it, install it and then download and install the missing dependencies also from oneiric. I have tried it, it works, but I found it simpler to use the older kernel just when I want to watch movies through my tv screen.

I should have written "To DOWNGRADE to kernel from Maverick" or rather, "to INSTALL a kernel from Maverick", actually, since it is rather downgrade than upgrade, and not a real downgrade either, unless you remove the natty kernel afterwards.

I'm now using Ubuntu 11.10 and the issue does not occur with kernel 3.0.0-12 or 3.0.0-13. I resolved it in Ubuntu 11.04 by installing a mainline kernel (approx 3.1), which I've since disabled in favor of the kernel released with 11.10.

I can confirm the problem on Xubuntu 11.10 to. I don't get any signal on the TV screen with kernel 3.0.0-12
and kernel 3.0.0-13. The s-video port is detected and listed on xrandr. The refresh rate is given with 30hz, but
is seems to bee wrong for a PAL-TV.

If I use an installed lucid kernel 2.6.32-36 so I can switch on the s-video port and I get the expected picture
on my TV screen. But is not possible to switch the s-video port off again.

On Ubuntu 10.04 and Debian Squeeze the s-video port is able to work as expected. I can switch it on/off and
I can change the resolution and TV norm (PAL <-> NTSC) as well.

I use Xubuntu 11.10 too and I confirm that this bug does exist. Some time ago I had a need to connect my Acer Extensa 4220 laptop to a TV set via S-Video. I could see options window and choose "TV out" on the screen of my laptop but TV set screen stayed black. Then I had done a series of experiments with Ubuntu LiveCD's and I had stated that it was alright in Ubuntu 10.10 and something went wrong in Ubuntu 11.04. With Ubuntu 10.10 I could see image both on my laptop screen and a TV set via S-Video connection.

I see people having - I guess - the same problem with Ubuntu and another distros, with new kernels and drivers too:

My solution for now is to use live USB stick with Linux Mint 9 Rosinka (Russian version 'cos I'm from Russia).
But I'd like to have a real solution with new kernel, new software, new drivers because using old versions is a step back and sign of regress. This bug should be fixed.

Is there anything that could be done to raise the priority on this? The problem appears to have been around for a very long time. I've switched back to Linux after many years on Windows in various development environments. I'm very impressed with how Linux has progressed, but it's frustrating and embarassing to be limited to a single monitor in a development environment.

I've experienced the same failure (VGA inoperable, DVI works as expected) in Ubuntu 11.10 on a Toshiba M700 with docking station. This problem appears to affect multiple Intel Chipsets and probably is having a combined effect larger that is being tracked on individual bug reports across organizations.

After screwing around with things for a few months I've realized my system's behavior is stranger than it originally appeared, and perhaps my problem is a different bug from what's been reported here. Still running the same system from my prior post (Ubuntu 11.10, Toshiba M700 Laptop, Docking Station, Intel GM965/GL960 Integrated Graphics Controller) I've found that I can reliably get dual montors to work with the following procedure:

If I'm not mistaken, It seems "drivers/gpu/drm/i915/intel_tv.c" file gererates a kernel module called i915.ko.

So, what if I find a way of editting intel_tv.c file only, generating a i915.ko file afterwards, and then loading this module instead of default one? It'll be less troublesome than recompiling whole kernel. Will it work?

This apparently is on the 915 and 965 Intel cards. I am still getting this issue. Been lucky that I have been watching just on the laptop but need the external s-vid for playing. Unfortunately I have succumbed to dual booting Windows and Ubuntu 12.04 because it won't work under Fedora, Mint 13, Kubuntu, Xubuntu, or Lubuntu either.

It seems a really old issue.
I'm experiencing the same problem on Xubuntu 12.04 in 2014 and the listed kernel link not exist anymore.
I confirm the svideo was working perfectly with windows xp, but i don't wanna go back to that rubbish.
Please if there anyone who could solve this problem, let me know.

> It seems a really old issue.
> I'm experiencing the same problem on Xubuntu 12.04 in 2014 and the listed
> kernel link not exist anymore.
> I confirm the svideo was working perfectly with windows xp, but i don't
> wanna go back to that rubbish.
> Please if there anyone who could solve this problem, let me know.
>
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> Title:
> [915GM] S-video output doesn't work in Natty (i386)
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